US1086531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential gate mechanism.
Assignee: FRANCIS K FASSETT
•
Filing: 1910-05-19
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Granted: 1914-02-10
•
Expires: 1930-05-19
Abstract
No abstract record available.
Inventors
- 👤 Edward F Hurd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:52
CPC Classifications
B; B66; B66B; B66B13/00; B66B13/02; B66B13/06; B66B13/08; E; E05; E05Y; E05Y2201/00; E05Y2201/40; E05Y2201/43; E05Y2201/434
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1917-02-09 | 1917-08-11 | 1918-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-02-09 | 1921-08-11 | 1922-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-02-09 | 1925-08-11 | 1926-02-10 | $7700.00 | Window Closed / Lapsed |